public Teapot(GLUT glut, double scale)
{
this.glut = glut;
gl = glut.gl;
display_list = gl.gen_lists (1);
gl.new_list (display_list, GL.COMPILE);
glut.solid_teapot (scale);
gl.end_list ();
}
/**
* {@link GLU.perspective} with anti-aliasing.
*
* <p>Other arguments are identical to {@link GLU.perspective}. Set
* both `pixdx' and `pixdy' equal to 0.0 for no anti-alias jitter. Set
* both `eyex' and `eyey' equal to 0.0 for no depth of field effects.
*
* @param pixdx x of anti-alias jitter in pixels
* @param pixdy y of anti-alias jitter in pixels
* @param eyedx x of depth-of field jitter in pixels
* @param eyedy y of depth-of field jitter in pixels
* @param focus distance from eye to plane in focus, must be greater
* than, but not equal to 0.0
*/
public static void perspective(GL gl, int window_width, int window_height,
double fovy, double aspect, double near, double far,
double pixdx, double pixdy, double eyedx, double eyedy, double focus)
{
// identical to code of `GLU.perspective'
double ymax = near * Math.Tan (gnu.util.Math.toRadians (fovy/2));
double ymin = -ymax;
double xmin = ymin * aspect;
double xmax = ymax * aspect;
frustum (gl, window_width, window_height,
xmin, xmax, ymin, ymax, near, far,
pixdx, pixdy, eyedx, eyedy, focus);
}
/**
* {@link GLU.frustum} with anti-aliasing.
*
* <p>Other arguments are identical to {@link GLU.frustum}. Set
* both `pixdx' and `pixdy' equal to 0.0 for no anti-alias jitter. Set
* both `eyex' and `eyey' equal to 0.0 for no depth of field effects.
*
* @param pixdx x of anti-alias jitter in pixels
* @param pixdy y of anti-alias jitter in pixels
* @param eyedx x of depth-of field jitter in pixels
* @param eyedy y of depth-of field jitter in pixels
* @param focus distance from eye to plane in focus, must be greater
* than, but not equal to 0.0
*/
public static void frustum(GL gl, int window_width, int window_height,
double left, double right, double bottom, double top,
double near, double far, double pixdx, double pixdy,
double eyedx, double eyedy, double focus)
{
double xwsize = right - left;
double ywsize = top - bottom;
double dx = pixdx*xwsize/window_width + eyedx*near/focus;
double dy = pixdy*ywsize/window_height + eyedy*near/focus;
gl.matrix_mode (GL.PROJECTION);
gl.load_identity ();
gl.frustum (left-dx, right-dx, bottom-dy, top-dy, near, far);
gl.matrix_mode (GL.MODELVIEW);
gl.load_identity ();
gl.translatef ((float) -eyedx, (float) -eyedy, 0.0f);
}
public GLU(GL gl)
{
this.gl = gl;
}
/**
* @see GL#GL(GLX, int, int, GL)
*/
public GL create_context(int visual_id, int screen_no, GL share_list)
{
return new GL (this, visual_id, screen_no, share_list);
}
public Quadric(GL gl)
{
this.gl = gl;
}
public GLUT(GLU glu)
{
this.glu = glu;
gl = glu.gl;
}
// glx opcode 3 - create context
/**
* @see <a href="glXCreateContext.html">glXCreateContext</a>
*/
public GL(GLX glx, int visual_id, int screen_no,
GL share_list)
: base(glx.display)
{
this.glx = glx;
Request request = begin_command_request (3, 6);
request.write4 (id);
request.write4 (visual_id);
request.write4 (screen_no);
request.write4 (share_list.id);
request.write1 (false); // is_direct
display.send_request (request);
}
// glx opcode 10 - copy context
/**
* @see <a href="glXCopyContext.html">glXCopyContext</a>
*/
public void copy(GL dst, int mask)
{
Request request = begin_command_request (10, 5);
request.write4 (id);
request.write4 (dst.id);
request.write4 (mask);
request.write4 (tag);
display.send_request (request);
}
protected void init_window(int width, int height)
{
visual_config = glx.visual_config (visual_config);
int vid = visual_config.visual_id ();
gl = glx.create_context (vid, display.default_screen_no, GL.NONE0);
// FIXME share colormap
Colormap colormap = new Colormap (display.default_root, vid, false);
Window.Attributes attr = new Window.Attributes ();
attr.set_colormap (colormap);
// TODO use depth of x visual config instead of
// `visual_config.buffer_size'?
int depth = visual_config.buffer_size ();
int more = Event.EXPOSURE_MASK | Event.KEY_PRESS_MASK; // compulsory
/* Bugs? Whenever button motion events are selected, it is required to
* select button press event as well.
*/
if ((event_mask & ANY_BUTTON_MOTION_BITS) != 0)
more |= Event.BUTTON_PRESS_MASK;
attr.set_event_mask (event_mask | more);
window = new Window (display.default_root, 10, 10, width, height);
window.create (5, depth, Window.INPUT_OUTPUT, vid, attr);
window.set_wm (this, "main");
window.set_wm_delete_window ();
gl.make_current (window);
glu = new GLU (gl);
glut = new GLUT (glu);
}
